CVE-2025-68737 (GCVE-0-2025-68737)

Vulnerability from cvelistv5 – Published: 2025-12-24 12:09 – Updated: 2026-05-11 21:52
VLAI
Title
arm64/pageattr: Propagate return value from __change_memory_common
Summary
In the Linux kernel, the following vulnerability has been resolved: arm64/pageattr: Propagate return value from __change_memory_common The rodata=on security measure requires that any code path which does vmalloc -> set_memory_ro/set_memory_rox must protect the linear map alias too. Therefore, if such a call fails, we must abort set_memory_* and caller must take appropriate action; currently we are suppressing the error, and there is a real chance of such an error arising post commit a166563e7ec3 ("arm64: mm: support large block mapping when rodata=full"). Therefore, propagate any error to the caller.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: a166563e7ec375b38a0fd3a58f7b77e50a6bc6a8 , < 3e2fc1e57a5361633a4bf4222640c6bfe41ff8ea (git)
Affected: a166563e7ec375b38a0fd3a58f7b77e50a6bc6a8 , < e5efd56fa157d2e7d789949d1d64eccbac18a897 (git)
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Linux Linux Affected: 6.18
Unaffected: 0 , < 6.18 (semver)
Unaffected: 6.18.2 , ≤ 6.18.* (semver)
Unaffected: 6.19 , ≤ * (original_commit_for_fix)
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{
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          "programFiles": [
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\narm64/pageattr: Propagate return value from __change_memory_common\n\nThe rodata=on security measure requires that any code path which does\nvmalloc -\u003e set_memory_ro/set_memory_rox must protect the linear map alias\ntoo. Therefore, if such a call fails, we must abort set_memory_* and caller\nmust take appropriate action; currently we are suppressing the error, and\nthere is a real chance of such an error arising post commit a166563e7ec3\n(\"arm64: mm: support large block mapping when rodata=full\"). Therefore,\npropagate any error to the caller."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T21:52:22.300Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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          "url": "https://git.kernel.org/stable/c/e5efd56fa157d2e7d789949d1d64eccbac18a897"
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    "dateReserved": "2025-12-24T10:30:51.029Z",
    "dateUpdated": "2026-05-11T21:52:22.300Z",
    "state": "PUBLISHED"
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            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\narm64/pageattr: Propagate return value from __change_memory_common\n\nThe rodata=on security measure requires that any code path which does\nvmalloc -\u003e set_memory_ro/set_memory_rox must protect the linear map alias\ntoo. Therefore, if such a call fails, we must abort set_memory_* and caller\nmust take appropriate action; currently we are suppressing the error, and\nthere is a real chance of such an error arising post commit a166563e7ec3\n(\"arm64: mm: support large block mapping when rodata=full\"). Therefore,\npropagate any error to the caller."
          }
        ],
        "id": "CVE-2025-68737",
        "lastModified": "2026-06-17T09:59:30.253",
        "metrics": {},
        "published": "2025-12-24T13:16:28.653",
        "references": [
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      "product_status:known_not_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: arm64/pageattr: Propagate return value from __change_memory_common",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-68737.json",
      "version": "3"
    }
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}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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